43results about How to "Suitable for industrial large-scale production" patented technology

The invention provides a gel tissue plugging material and a preparation method thereof, and a plugging product. The gel tissue plugging material comprises: a matrix, wherein the matrix comprises a gellayer; and a wet-state adhesion layer on at least one surface of the matrix, wherein at least one surface of the matrix contacts an adhesion solution to obtain the wet-state adhesion layer, the adhesion solution contains an amino compound and a buffer liquid, and the amino compound is dissolved in the buffer liquid. According to the present invention, the gel tissue plugging material has advantages of excellent adhesion property, excellent bursting strength, suitable elongation at break and good elasticity, and can be effectively adhered to the surface of organisms or substantial organs so asto provide tissue plugging effect.

The invention provides flexible bionic electronic skin and a preparation method thereof. The flexible bionic electronic skin comprises a piezoresistance layer and a thin film electrode, wherein the piezoresistance layer is at least partially provided with a porous structure; the piezoresistance layer is in contact with the thin film electrode; the piezoresistance layer in the contact interface region of the piezoresistance layer and the thin film electrode is at least partially provided with a filling region; an elastic body is contained in the filling region; the resistance value of the piezoresistance layer is detected through the thin film electrode; the intensity of the received force of the flexible bionic electronic skin is determined according to the detecting result. The flexible bionic electronic skin can feel the existence of airflow and pressure; the structure is ingenious; the sensitivity is high; the flexible bionic electronic skin has certain mechanical stability.

The invention relates to a liquid crystal type emulsifying compound, a preparation method and an application thereof. The liquid crystal type emulsifying compound comprises the following components byweight: 0.01-5% of liquid crystal type emulgator, preferably 0.1-3%; 0.01-5% of suspension stabilizer, preferably 0.3-4%; 0.1-5% of water-in-oil emulgator, preferably 0.5-4%; 0.1-5% of higher aliphatic alcohol, preferably 0.5-3%; 30-80% of water, preferably 50-75%. The liquid crystal type emulsifying compound disclosed by the invention is gentle and no-stimulation, is high in stability, has the functions of deeply moistening and effectively preserving moisture and is capable of forming a liquid crystal protective barrier on skin surface, protecting skin from being injured by external environment and effectively relieving the skin problem under environmental pressure. The liquid crystal type emulsifying compound disclosed by the invention also has a certain spreadability and glossiness andis capable of achieving a long-acting moistening effect and keeping skin long-lasting moisturized and glossy.

The invention provides a porous tissue blockage material as well as a preparation method and a blockage product thereof. The porous tissue blockage material comprises a matrix and a wet-state adhesionlayer existing on one or more surface of the matrix; the matrix is at least partly provided with a porous structure; the average pore size of the matrix is 50-200 microns, and the porosity is 80-96 percent; the wet-state adhesion layer is obtained by contact of one or more surface of the matrix and an adhesion solution; the adhesion solution is prepared from an amino compound and a buffer solution; and the amino compound is dissolved in the buffer solution. The porous tissue blockage material has excellent adhesion performance and burst strength and proper elongation at break and can performeffective adhesion to the surface of an organism or a parenchymal viscera. Meanwhile, the matrix of the porous tissue blockage material has relatively large porosity, can rapidly absorb liquid and isbeneficial to enable a wound to keep relative dry so as to better maintain the adhesion performance of the blockage material.

The invention provides a self-repairing composite coating, application of the self-repairing composite coating, an anticorrosion material and a preparation method of the anticorrosion material. The self-repairing composite coating comprises a hydrophobic layer and a hydrophilic layer, wherein the hydrophobic layer and the hydrophilic layer make contact with each other. The hydrophobic layer comprises hydrophobic matter. The hydrophilic layer comprises a self-repairing layer. The self-repairing layer comprises hydrophilic matter A. the hydrophilic matter A comprises at least one type of dynamiccovalent bonds. Compared with the prior art, the self-repairing composite coating, application of the self-repairing composite coating, the anticorrosion material and the preparation method of the anticorrosion material have the advantages that the self-repairing composite coating can be applied to the field of corrosion resistance, do not allow liquid to permeate, and can automatic repair the defects of the coating in the preparation process and the using process, and then the anticorrosion effect can be effectively achieved; and furthermore, according to the self-repairing composite coating, the situation that a substrate is corroded because liquid enters the composite coating and makes contact with the substrate is avoided, the defects of the coating can be automatically repaired in the preparation process and the using process, and the self-repairing composite coating has the excellent biocompatibility.

The invention provides a tissue occlusion material, a method for preparing the same and an occlusion product. The tissue occlusion material comprises a matrix and wet-state adhesion layers. Cellosilkwith the diameters ranging from 10 nm to 100 micrometers is interwoven to form the matrix, and the matrix is at least partially provided with porous structures; the wet-state adhesion layers are arranged on at least one surface of the matrix, the surfaces of the matrix are in contact with adhesion solution to form the wet-state adhesion layers, the adhesion solution comprises amino compounds and buffer solution, and the amino compounds are dissolved in the buffer solution. The tissue occlusion material, the method and the occlusion product have the advantages that the tissue occlusion materialis excellent in adhesion property and burst strength and appropriate in elongation at break, and can be effectively adhered with the surfaces of organisms or the surfaces of solid organs; the tissueocclusion material is further provided with porous network micro-structures formed by the cellosilk, and accordingly wound healing and tissue regeneration can be promoted.

The invention provides a dye dispersant and a preparation method thereof. The preparation method for the dye dispersant comprises the following steps: taking a naphthalene compound and sulfuric acid for performing sulfonation reaction; collecting low-boiling-point organic matters generated in sulfonation reaction; adding the low-boiling-point organic matters into a reaction system of sulfonation reaction and then continuing to react, thereby acquiring a sulfonated product. The preparation method for the dye dispersant provided by the invention is capable of reducing the dosage of sulfuric acid, so as to greatly reduce the generation of waste residue calcium sulfate and achieve the purpose of environmental protection. Besides, the preparation method provided by the invention can avoid the problem of decline in quality of the product caused by the introduction of other unknown materials. Furthermore, the preparation method for the dye dispersant provided by the invention has higher safety, environmental protection property, lower cost and suitability for industrial large-scale production.